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The Pittsburgh Penguins continued to bolster their roster for a Stanley Cup run, acquiring San Jose defenseman Doug Murray on Tuesday for a pair of second-round picks.

The 33-year-old Murray will give the Penguins a physical presence at the blue line along with plenty of playoff experience. The 6-foot-3, 245-pound Murray has three assists in 29 games for the struggling Sharks this season.

The trade marks the second aggressive move in as many days for Pittsburgh, which brought in veteran forward Brenden Morrow from Dallas on Sunday in exchange for promising defenseman prospect Joe Morrow.

Pittsburgh has won 12 straight games heading into Tuesday night's showdown with surprising Montreal.

Around the league

• Alexander Semin has agreed to a five-year contract extension with the Carolina Hurricanes. The team announced Monday that Semin will make $7 million per year through the 2017-18 season. Semin left Washington last summer and signed a one-year deal with the Hurricanes.

• The Tampa Bay Lightning have hired Jon Cooper as their new coach. Cooper had been coaching Syracuse of the AHL, Tampa Bay's top minor league affiliate. He is replacing Guy Boucher, who was fired Sunday. 